Advantech SOM-2532 Series, User Manual

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35 SOM-2532 User Manual
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3.2.2.12 USB Configuration
Figure 3.16 USB Configuration

Legacy USB support
Enables Legacy USB support. AUTO option disables legacy support if no USB
devices are connected. DISABLE option will keep USB devices available only
for EFI applications.

XHCI hand-off
This is a workaround for OS without XHCI hand-off support. The XHCI owner -
ship change should be claimed by XHCI driver.

USB mass storage driver support
Enable/Disable USB Mass Storage Driver Support.

USB transfer time-out
The time-out value for Control, Bulk, and Interrupt transfers.

Device reset time-out
USB mass storage device Start Unit command time-out.

Device power-up delay
Maximum time the device will take before it properly reports itself to the Host
Controller.
'Auto' uses default value: for a Root port it is 100 ms, for a Hub port the delay is
taken from Hub descriptor.

Device power-up delay in seconds
Delay range is 1...40 seconds, in one second increments.